US3933875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opaque polyester copolymer coated articles
Assignee: BASF Farben und Fasern AG
•
Filing: 1973-03-01
•
Granted: 1976-01-20
•
Expires: 1993-03-01
Abstract
Abstract Opaque coatings and molded articles are produced from normally transparent copolymer compositions of unsaturated polyesters and monomers therefore by using from about 3 percent to less than 45 percent by weight of unsaturated polyesters based on the total weight of the composition.
Inventors
- 👤 Horst Brose
- 👤 Karl Dieter Depping
- 👤 Dietrich Hentschel
- 👤 Bernard Kostevc
- 👤 Klaus Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:35
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/06; C08; C08F; C08F283/00; C08F283/01; C08L; C08L67/00; C08L67/06; F; F16; F16L; F16L2101/00; F16L2101/10; F16L2101/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31551; Y10T428/31565; Y10T428/31786
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
In a process for the production of opaque coated articles comprising applying and conventionally curing on the surface of said articles normally transparent coating compositions containing unsaturated polyesters (I), copolymerizable monomers (II), catalysts and additives, the improvement comprising: said coating composition containing said unsaturated polyester (I) and said copolymerizable monomers (II) in a relationship of about 3 -45 weight percent (I) and about 55 - 97 weight percent (II), and additionally 0.1 to 15 weight percent related to the content of unsaturated polyesters of synthetic resins selected from the group consisting of nitrocellulose, cellulose-acetobutyrate, alkyd resins, ketone resins, saturated polyester resins, poly-adipates, epoxide resins, polyurethane resins, amine-aldehyde resins, phenolic resins, acrylic resins, methacrylic resins, vinylchloride polymers, vinylacetate polymers and vinylpropionate polymers.
Claim 2
Dependent Claim
121 words
In a process for the production of opaque coated articles comprising applying and conventionally curing on the surface of said articles normally transparent coating compositions containing unsaturated polyesters (I), copolymerizable monomers (II), catalysts and additives, the improvement comprising: said coating composition containing said unsaturated polyester (I) and said copolymerizable monomers (II) in a relationship of about 3 -45 weight percent (I) and about 55 - 97 weight percent (II), and additionally 0.1 to 15 weight percent related to the content of unsaturated polyesters of synthetic resins selected from the group consisting of nitrocellulose, cellulose-acetobutyrate, alkyd resins, ketone resins, saturated polyester resins, poly-adipates, epoxide resins, polyurethane resins, amine-aldehyde resins, phenolic resins, acrylic resins, methacrylic resins, vinylchloride polymers, vinylacetate polymers and vinylpropionate polymers.
Claim 3
Dependent Claim
29 words
The process of claim 1, wherein said relationship between I and II is about 10 - 45 percent by weight (I) to 55 - 90 percent by weight (II).
Claim 4
Dependent Claim
29 words
In the process of claim 1, wherein said additional content of synthetic resins is about 0.1 to 5 percent by weight related to the content of the unsaturated polyesters.
Claim 5
Dependent Claim
10 words
The coated article produced by the method of claim 1.
Claim 6
Dependent Claim
33 words
The process of claim 1, further comprising about 0.001 to 1 percent by weight transparent coloring dyestuffs selected from the group consisting of metal complex dyestuffs, diazo dyestuffs, dioxazine dyestuffs and indanthrene dyestuffs.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |